Tractor steering xxmechanism



July 17, H923.

J. G. BOLTE TRACTOR STERING MECHNISM` Original Filed June 26. 1919 iii@i La- Patented July l?, 1923.

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Josnrrre. Borra, ornavnnrozer, IOWA.

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Original application led June 26, 1919, Serial No. 306,777. Divided andthis'application led December i i 17, 1921. Serial No. 523,250.

To all 107mm il may concern.'

Be it knownfthat I, JOSEPH Gr. BoL'rE, a citizen of the UnitedStates,'residing at the city of Davenport, inthe county of Scott andState of Iowa, have invented a new and useful Tractor i SteeringMechanism,` oi which the following is a specification.

My invention relates to improvements in tractor steering mechanism inwhich stubaxles are heldin place or deflected by means of levers,operated by rod means which connect the said levers Vtogether and byother rod means connectingoneoi` said levers to `other steering means.provided upon the tractor, such as the steering wheel orsteer ing rod.

The objects ofimyinvention are to pro vide a'strong, dependable andresponsive means of steering attractor, yet simple of construction andadapted to radical turning toright angular positions under adverseconditions. D f f 1 i A further object is to provide connecting meansbetween the stub aXles and the steering wheel or steering worm of' atractor which is more responsive andi less cumber' some than the otherfk'nown means.

I desire to prosecute this as an improvement` in connection with anotherinvention which I have applied for patent upon under application filedJune 26th 1919 under Serial Number 306,777', of the United States PatentOffice, for tractor steering'mechanisim, pursuant to order for divisionmade therein on December `17th 1920.

I attain these objects by the mechanism illustrated `in the accompanyingVdrawings in which:

"Figure 1, is a front view of the trussed frame. i

Figure 2 is a top pla-n view oi the trussed frame.

Fig. 3, is al front view of the trussed frame assembled, disclosing thesteering devices. j t

Fig. 4, is a t-op plan view of the trussed 'lrame assembled disclosingthe steeringv devices. y

Fig. 5, is a'plan view of a minor steering lever.

serving to illustrate Figs. 5 and 7.1'

Fig. 7 is a plan view of a major steering y l lng 2O or levers 38 and 39are constructed lever.

yci' said boXing13b.

Fig. 6, is an edge view of a steering lever,`

throughout the several views.

The frame work ofmy invention consists "of a trussed frame 1i,constructed of bars 1 and 3 .secured to each other by brace bars 2, byany suitable means, the brace bar being secured to bar 1 by king bolt 7passing through holes 7b of bar 2 and hole 7(1 of bar 1, and 'is securedtherein by screw nut means 7a which king bolt 7 also` servesv tosecure-coupling pole 11 to the iframe. f

Frame 1a is also provided withv an archf collar 4 mounted centrally ontop of bar 3 by bolts 5 through'holes 5b extending through the ends otcollar 4 connectedly with barS 1, 2, and 3, bracing the iframe.

The tractor motor, (not shown), is for- Wardly rotatably mounted by4shaft (not shown)` inserted through a hole 4? in said arch 4. y y

Trussed frame 1a is a part of the running gears of a tracto-r made so bycouplingpole y 11 and` hounds 36, which hounds, and

thereon by nut 12a. 1

Thev inner end of stub-axle 13 is radially provided with a iianged plate13e horizonf tally disposed having a plurality of cogs 13a on its largercircumference, disposed conjunctively to the flange 13c of spindle 17,which flanged plate 13e` extendsv laterally from boxings 13b andcircularflange y13c opposite the said spindle 17, which anged plate -13eandspindle 17 each protrude latand conjunctivelyl secured to` `theerallyfrom the same circumferential radius The plurality ofcogs 13aprovided upon the edge of plate 13 areffor the purpose of engagementwith similar cogs in the `end of" steering' levers38,and 39.

The boxings 13b of stub axle 13 boir- With protruding boxing ends 20l onthe opposite sides of flanged plates 38 and 39 and for the purpose of'creatingvb-oss bearings 20' touching frame bar l.

Each of said levers is constructed With long boxing 2O and a shortboxing 211 each l :boxing Abeing transversely arranged through and uponthe sides of flanged plate 22 and arshort'iboss bo`xing20a isconstructed on the side of said plate 22 opposite the" side whereonjisconstructed long boxing 20. v

Plate 22 has one of its edges pinionated Vat 16a for meshing with cogs13e;

Itxvill be observed that major lever 39 is constructed With an elongatedportion 14 havingra hole 19 spaced closely to the outward end thereof,which hole`l9 is for the purpose of connecting the pull rod 2G thereplates 38 and 39; ythe rod ends 25 -being Theends 23a aresecured'through holes 22 by any suitable means (not shovvn). `Iclai1n:

`1.In a tractor steering mechanism a trussed frame supporting an archedcollar capable of pivotally supporting an engine thereon andhavingspaced in either of its ends perpendicular boxing means, one of whichboxings is formed intoy a stub axle having radial gears the vother'ofsaid boxings is formed into a flanged plate havingradial Vgears andlever` means suitable for permit- V ting them to be operatedconnect-ively with a steering mechanism by ineans of steeringy rodsandfpull rods all for the purposes specilied.

2. In a tractor steering mechanism, a pair offradial plates mounted in atrussed frame by journal means, saidr-adial plates having radialgear-s'` provided upon their edges and having a portionof their edge-formed into a lever, said lever provided With hole means i 'suitablefor causing them to be coiinectedly operated vby connecting rod means,one of said plates having another elongated portion 'formed in one ofits edges, such elongated portion having hole means provided in its'outward end suited to receiving the end ofv a .i

pull rod such latter` platebeingsuited to be operated by such pull rodin such manner as to operate conjunctively; the other flanged plateand apair of axlesall for the purposes specified. l

3. In a tractor steering mechanism an axle consisting of bars trussedtogether by connecting braces; means for loosely mounting rotatingsteering levers conjunctively with rotating stub axles between the barsoflthe trussed frame; a trussed axle frame having an arch collaroutwardly secured upon one of its bars in such manner as to brace saidframe and capable of supporting the front end of a tractor thereon insuch manner as to facilitate the conjunctive operation of 'steeringmechanism providedin such trussed frame with'the steering mechanismprovided on said tractor; a stub-axle havinga spindle on one of its endsand a plate flange horizontally disposed, provided with radial gearsabout its `edgesg at its otherY end, trans'- verse bi-laterallyprotruding boxing Ine-ans formed in such plate flange; a steering leverconsisting ofA a plate flange horizontally'dsposed having a portion ofits edge radially formed, its radial edge provdedwvith gears suitablyconformable to the gears vof the stub-axle, another portion ofi saidrplate flange edge bluntly elongated, such blunt elongation providedWitha4 holev spaced near rits outward edge, and-another portion of` saidplate flange more elongated than the first, such latter elongationprovided" with a hole spaced near=its outward: edge, the center of suchplate flange transversely pro'- vided with a bilateral boxingsupported'by a journal bolt attached to a trussedV frame; asteering'lever consisting of a. plateA flange horizontally disposedhaving a portion of'its edge radially formed',` its: radial edge pro.;vided with gears suitably'conformable to the gears of the stub-axle,'anotherportion of said plate flange edge lbluntly elongated, such bluntelongation provided'with a hole spaced near its' outward edge, theV saidplate flange transversely provided Wit-li a bilateral boxing centrallydisposedl to the radius of the gears formed in the edge of said plateflange, and supported by a journal bolt attached.' to a trussed frame;rod means having; a turnbuckle regulating joint connectedly attachedbetween the bluntly elongated portions of a pair of steering levers,otherl rod means attached at one of its `ends to a more elongated endattached to the steering mechanism Aof a Vehicle, all for the purposesspeci- Davenport, IoWa-,Decemberi15, 1921.

y y, J, BOL'ITE. Witnesses:

Fianna SAM-Horn FRED LEMBURG.

